Tanjararak Kangsadarn, Tangbumrungtham Navarat, Plumworasawat Sirithep, Roongpuvapaht Boonsam
Department of Otolaryngology Head & Neck Surgery, Ramathibodi Hospital, Faculty of Medicine, Mahidol University, 270 Rama VI Road, Phayathai, Ratchathewi, Bangkok, 10400 Thailand.
Department of Pathology, Ramathibodi Hospital, Faculty of Medicine, Mahidol University, Bangkok, Thailand.
Indian J Otolaryngol Head Neck Surg. 2022 Oct;74(Suppl 2):911-917. doi: 10.1007/s12070-020-02000-x. Epub 2020 Jul 24.
Schwannoma in paranasal sinus has been known as a rare tumor in this origin. This study reports on primary schwannoma arising in the nasopharynx, which is an uncommon location. A 36-year-old female presented with nasal obstruction for one month. Physical examination revealed a nasopharyngeal mass totally occluding bilateral posterior choanae and extended downward to the oropharynx. Magnetic resonance image showed heterogeneous enhancing mass at the nasopharynx extending inferiorly to the oropharynx. The tumor was excised via endoscopic combined trans-nasal/trans-oral approach under general anesthesia. The pathologic diagnosis was consistent with schwannoma. The tumor was successfully excised with en-block resection and the patient was discharged the next day after the operation, without any postoperative complications. There was no tumor recurrence at 12-months follow-up. Schwannoma primarily arising in the nasopharynx is uncommon. Minimally-invasive surgery via the endoscopic approach can be applied for tumor removal with fewer complications and reduced risk of morbidity.
鼻窦神经鞘瘤一直被认为是源于该部位的罕见肿瘤。本研究报告了起源于鼻咽部的原发性神经鞘瘤，这是一个不常见的部位。一名36岁女性因鼻塞1个月就诊。体格检查发现鼻咽部肿物完全阻塞双侧后鼻孔并向下延伸至口咽。磁共振成像显示鼻咽部不均匀强化肿物向下延伸至口咽。在全身麻醉下通过内镜联合经鼻/经口入路切除肿瘤。病理诊断为神经鞘瘤。肿瘤通过整块切除成功切除，患者术后第二天出院，无任何术后并发症。随访12个月无肿瘤复发。主要起源于鼻咽部的神经鞘瘤并不常见。通过内镜入路的微创手术可用于切除肿瘤，并发症较少且发病风险降低。
